Investment Securities (Details) - USD ($) $ in Thousands		Sep. 30, 2016	Dec. 31, 2015
Amortized cost and fair value of debt securities
Maturity 1 Year or Less	[1]	$ 6,365	$ 26,402
Maturity 1-5 Years	[1]	163,934	175,147
Maturity 5-10 Years	[1]	44,855	31,884
Maturity After 10 Years	[1]	5,342	2,575
Total Amortized Cost		220,496	236,008
Gross Unrealized Gains		1,718	1,060
Gross Unrealized Losses		(390)	(2,014)
Fair value		221,824	235,054
U.S. government and federal agency obligations
Amortized cost and fair value of debt securities
Maturity 1 Year or Less	[1]	0
Maturity 1-5 Years	[1]	0
Maturity 5-10 Years	[1]	10,954
Maturity After 10 Years	[1]	2,494
Total Amortized Cost		13,448
Gross Unrealized Gains		13
Gross Unrealized Losses		(121)
Fair value		13,340
Government sponsored enterprises
Amortized cost and fair value of debt securities
Maturity 1 Year or Less	[1]	3,010	23,067
Maturity 1-5 Years	[1]	30,595	50,538
Maturity 5-10 Years	[1]	0	0
Maturity After 10 Years	[1]	0	0
Total Amortized Cost		33,605	73,605
Gross Unrealized Gains		82	127
Gross Unrealized Losses		(10)	(235)
Fair value		33,677	73,497
Obligations of states and political subdivisions
Amortized cost and fair value of debt securities
Maturity 1 Year or Less	[1]	2,315	1,827
Maturity 1-5 Years	[1]	16,672	16,975
Maturity 5-10 Years	[1]	16,112	12,593
Maturity After 10 Years	[1]	1,332	829
Total Amortized Cost		36,431	32,224
Gross Unrealized Gains		436	493
Gross Unrealized Losses		(100)	(11)
Fair value		36,767	32,706
Mortgage-backed securities
Amortized cost and fair value of debt securities
Maturity 1 Year or Less	[1]	1,040	1,508
Maturity 1-5 Years	[1]	116,667	107,634
Maturity 5-10 Years	[1]	17,789	19,291
Maturity After 10 Years	[1]	1,516	1,746
Total Amortized Cost		137,012	130,179
Gross Unrealized Gains		1,187	440
Gross Unrealized Losses		(159)	(1,768)
Fair value		138,040	128,851
Mortgage-backed securities | Residential - government agencies
Amortized cost and fair value of debt securities
Maturity 1 Year or Less	[1]	1,040	1,508
Maturity 1-5 Years	[1]	115,679	106,648
Maturity 5-10 Years	[1]	17,789	19,291
Maturity After 10 Years	[1]	1,516	1,746
Total Amortized Cost		136,024	129,193
Gross Unrealized Gains		1,159	432
Gross Unrealized Losses		(159)	(1,768)
Fair value		137,024	127,857
Mortgage-backed securities | Commercial - government agencies
Amortized cost and fair value of debt securities
Maturity 1 Year or Less	[1]	0	0
Maturity 1-5 Years	[1]	988	986
Maturity 5-10 Years	[1]	0	0
Maturity After 10 Years	[1]	0	0
Total Amortized Cost		988	986
Gross Unrealized Gains		28	8
Gross Unrealized Losses		0	0
Fair value		$ 1,016	$ 994

[1] Expected maturities may differ from contractual maturities because borrowers have the right to call or prepay obligations with or without prepayment penalties.